Good News!
being that I do not consider myself the most mechaical sort, I appreciate the advise. I raised the the top half and it worked fine, then took off the wood trim piece, looked at the cable and top pully and was about to crawl under the camper to look over the rest when I noticed the tube that supports the bunk bed when lowered was hanging down and not retracted where it should have been. Sure enough, there was a crushed spot on the trim board about where the support should be when using the bunk and viola- with the support pushed back up to it's place, she went down like new!
sorta embarased as ive crushed a few forgotten cans over the years and make it a point to do a good visual each time i lower but sure didnt notice the erant bunk suport...... Thanks all- I am sure Ill have other communications.
Would luv to meet up if there is a Hi/Low TowLite rendevous this year. -Brad